1. Open 2D/3D DWG files, support AutoCAD R14-R2015 DWG format. 2. Zoom, Pan, Full size, Space Layout, Layer, magnifier, Range measurement. 3. Directly open files from Email, Webchat or Skydrive. 4. Automatically find missing characters and symbols, perfectly show original characters and symbols. 5. Batch Files directly transfer between PC and Mobile without cable.